Vortex 120ZK38 Rear Aluminum Sprocket Sprockets

The Vortex Racing 120ZK38 is a high-performance rear aluminum sprocket designed for competitive motorcycle and powersports applications. Vortex Racing is a well-known manufacturer of precision-machined drivetrain components, trusted by racers and performance riders worldwide.

Key Features:

• Lightweight aluminum construction reduces unsprung rotational mass for improved throttle response and acceleration
• Precision CNC-machined for consistent tooth geometry and reliable chain engagement
• Anodized finish provides corrosion resistance and durability under racing conditions
• Direct OEM-style fitment for straightforward installation
• Part of Vortex Racing's extensive sprocket lineup, compatible with standard 520 chain pitch applications (verify chain pitch for your specific application)

Upgrading to a Vortex aluminum rear sprocket is a popular modification for reducing overall drivetrain weight compared to stock steel sprockets, resulting in a more responsive power delivery. The 120ZK38 designation indicates a 38-tooth count, making it suitable for riders seeking a specific final drive ratio adjustment for track or street performance tuning.